Quick-detachable pipe connection



C. B. KNEPPER.

QUICK DETAOHABLE PIPE CONNECTION. nrrucmuu'nun AUG.24. 1920.

1,536,882, Patented Nov. 28, 1922.

Inventor.

Patented Nov. 28, 1922.

UNITED STATES PATENT r em amoral-Em; n. or omo, Assmnon no nunnnn comrm,or AXE/H, one, A oonrom'nonor OHIO.

emcKmn'rAmimn mu connnqrron.

Application urea Augui't 24, 1mm {immune-4055531.

Toallwhomitmayconcem:

Be it known that I, Cmusrrorm, B. Kmrrrsn, a citizen ofthe United Statesand resident of Akron Ohio, have invente 5 certain new' and usefulImprovements in Quick-Detachable Pipe Connections, rof which thefollowing is a, s ecification.-- "My resent invention rel iifes to quickdo tacheb e ipe connections designed more-eseciaglly or pipes such as.are used to. conuct the air to tires while they are being vulcanized.

As is well known tot'hose skilled in the art, cord tires are usuallycured in molds while subjected to internal ressure, which is usuallymaintained by having the air bag, upon which the tire is mounted,connectedtbroughout the curing o oration, with a source of air pressure.rent trouble has been experienced in the maintenance of the air pressuredue to the means by which the pipe connections have heretofore been madeto the air bags. These connections, if not air tight, will not onlycause loss ofthe pressure fluid, but may result in so reduced e ressuieas to result in the production of. de ective tires. Various forms ofscrew connections have heretofore been used which necessitate the use ofwrenches for their 80 remove], and it will be readily seen','tbut in a.factory manufacturing many thousands of tires a day this results in amaterial loss of: time in connecting and disconnecting the. pipes, andfurther, by reason of the frequent operation, the threads become worn ordamaged necessitating the substitution.

of new connections resulting in further loss of time and materialexpense. r

The resent invention aims to provide 40 a simp e form of detachableconnection which may be manufactured at low. cost, which will be of a,durable nature, notlikely to become worn or damaged through frequentuse, which may be easily and qu ckly operated, and which will result Ina oint or connection not likely to allow leakage of the pressure fluid.

With these and other objects in view the invention includes the novelfeatures of construction and arran ement and combination of partshereinuiter described and particularly defined by the appended claims.

An embodiment of my invention is ilin itct5ompeny'ing in i I T 1, is aloufgitudinel sectional view of Y 'e male-rand emale members :of theCOIiPllng beforezbemgfibroughtgto ther.

furs 2 ayside elevutibn of t e. mom-r hen or holding the said M male andfemale membersto'gethen i a side elevation of the "two N Fi 3 9 couplingmembers as brought together and helcl='by.the retaining member. i Figuredis esection online e-of'Figure-3, a.nd= l i Figure 5 ice section on5--5 of ure '3 looking in an op osite direction to that (if Figure 4. PV

Reterrmg by reference characters to this drawing the numeral 1designates a. male "coupling member and 2 a female couplin membcr, thesebeing designed to be secured to the pipes or tubes to be connected inthe ordinary or any'desired manner. In practies the member 1 wouldpreferably constitute the stem .of" the airbag used for inflatmg thetires and, exce t as hereinafter described, would be r to the valve stemof the ordinary inner tube except that it would be unprovided with anyvalve. .The male member 1 is provided with a cylindrioal portion 1 whichfits slidingly or telescopes in a. cylindrical recess 2 in the femalemember. The end of this cylindricel portion 1" of the male member isprov ded with c ground conical or tapered face l which fits acorrespondingl tapered seat 2 of the female member. 'hhe male and femalemembers are rovided with shoulders or flanges desi e to be engaged by a;spring member or holding them pressed together with the ground face ofthe male member firmly seated against the corres ending portion of thefemale member. prefer to make the flange or shoulder of one of themembers adjustable, and in the form shown in the drawing accomphshthisby threading the stem 1 as indicated at 1 and screwing thereon a nutor collar as indicated at 4 the shoulder or flange of the other memberbeing conveniently formed by the base of the enlarged portion of thecoupling member as indicated at 2. The member for holding these couplingmembers together is desigvided with an open, slot 3", forming a.

forked portion as shown. The arms of the member; 3 are rounded, curved,or flared in opposite directions. Before the male and female parts arebrought together the coupling or compression'member 3 be held on theshank of the female member by the engagement of the latter-in the'open-Y ing 3' end the coupling member will ell-Op down into the positionshown in Figure 1. After the-male and female members have been broughttogether the member "3 is swung up until t e'fork engages the rearface-of the nut or collar 4 and-es'the memher 3 is forced up into theposition-shown in Figure '3 the :fork will bear on-the' collar- 4 with-ayielding cam-action,- and with the parts in the-relation illustrated byFi'g' ure B'the male end female members will be pressed together toeffect an air tight joint.

means forverying the tension 0 At the same time the swinging of themember 3 in a. reverse direction will enable the male and female membersto be readily se arat'ed.

y adjusting the collar 4 the tension of the spring arms may beraried atwill.

7 Having thus described my invention what I claim is- 1. Aldetecha ble.pipe connection comprising cooperating male and female members having.shoulders or flanges, a, spring clip member for engaging said shouldersor flanges to hold t e parts'to ether, and g the spring. 2. A detachablepipe connection comprising' telescoping me e and female members,

one of said members having e rigid annular shoulder, a. collaradjustable longitudinally of the other member ends springicli-p ormember for engaging said shoulder and collar. I

t In testimony whereoi -l' e'tfix my signaure.

CHRISTOPHER B. KNEPPER.

